component
UA78M33CDCY
Public Made by Adomby adom
Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+41@@ -0,0 +1,41 @@+# UA78M33CDCY++**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-4++UA78M33CDCY from Texas Instruments, in a SOT-223-4. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | INPUT | power_in | Input pin; use the recommended 0.33 µF input capacitor placed as close to INPUT and COMMON as possible, with VIN of 5.3V to 30V for the UA78M33 (new chip; 25V max for legacy chip). |+| 2 | COMMON | power_in | Ground pin of the regulator, the reference for all voltages. |+| 3 | OUTPUT | power_out | Regulated 3.3V output pin delivering up to 500mA; the recommended 0.1 µF output capacitor (0.1 to 470 µF) should be placed close to OUTPUT and COMMON. |+| 4 | COMMON | power_in | Tab of the SOT-223 package, shown as COMMON (ground) in the DCY top-view figure. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOT-223-4 |+| Category | Power Management (PMIC) |+| Pins | 4 |++## CAD (KiCad official)++- Symbol: `UA78M33CDCY`+- Footprint: `Package_TO_SOT_SMD:SOT-223`+- 3D model: SOT-223-4 (KiCad packages3D, STEP)+- 3D model files: `ua78m33cdcy-etched.step` / `ua78m33cdcy-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ua78m33cdcy.step` / `ua78m33cdcy.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/ua78m) (41 pp, sha256 `de1c4b32fc1fcfd9`, retrieved 2026-10-01, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/ua78m33cdcy-datasheet.pdf)
page.jsonadded+135@@ -0,0 +1,135 @@+{+ "slug": "ua78m33cdcy",+ "version": "0.1.0",+ "type": "component",+ "description": "Texas Instruments Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-4. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "power management (pmic)",+ "ua78m33cdcy",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "ua78m33cdcy.kicad_sym",+ "ua78m33cdcy.kicad_mod",+ "ua78m33cdcy.glb",+ "ua78m33cdcy.step",+ "ua78m33cdcy.lbr",+ "docs/hero.png",+ "docs/ua78m33cdcy-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html"+ ],+ "component": {+ "mpn": "UA78M33CDCY",+ "manufacturer": "Texas Instruments",+ "package": "SOT-223-4",+ "pin_count": 4,+ "category": "Power Management (PMIC)",+ "subcategory": "Voltage Regulators - Linear, Low Drop Out (LDO) Regulators",+ "datasheet": "https://www.ti.com/cn/lit/gpn/ua78m",+ "parts": {+ "symbol": "ua78m33cdcy.kicad_sym",+ "footprint": "ua78m33cdcy.kicad_mod",+ "model_3d": "ua78m33cdcy-etched.glb",+ "model_3d_plain": "ua78m33cdcy.glb",+ "model_3d_step": "ua78m33cdcy-etched.step",+ "model_3d_step_plain": "ua78m33cdcy.step",+ "lbr": "ua78m33cdcy.lbr"+ },+ "distributor_links": {+ "lcsc": "C354526",+ "digikey": "2156-UA78M33CDCY-ND",+ "mouser": "595-UA78M33CDCY"+ },+ "distributor_check": {+ "checked_at": "2026-10-01T02:46:04Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "2156-UA78M33CDCY-ND",+ "status": "found",+ "lifecycle": "Active"+ },+ "mouser": {+ "pn": "595-UA78M33CDCY",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "INPUT",+ "type": "power_in",+ "description": "Input pin; use the recommended 0.33 µF input capacitor placed as close to INPUT and COMMON as possible, with VIN of 5.3V to 30V for the UA78M33 (new chip; 25V max for legacy chip)."+ },+ {+ "number": "2",+ "name": "COMMON",+ "type": "power_in",+ "description": "Ground pin of the regulator, the reference for all voltages."+ },+ {+ "number": "3",+ "name": "OUTPUT",+ "type": "power_out",+ "description": "Regulated 3.3V output pin delivering up to 500mA; the recommended 0.1 µF output capacitor (0.1 to 470 µF) should be placed close to OUTPUT and COMMON."+ },+ {+ "number": "4",+ "name": "COMMON",+ "type": "power_in",+ "description": "Tab of the SOT-223 package, shown as COMMON (ground) in the DCY top-view figure."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: The ordering information (page 25) indicates the package has 4 pins (SOT-223 (DCY) | 4), but the pin",+ "exposed pad 4 added from the footprint"+ ],+ "pages_sent": 10,+ "cost_usd": 0.1237,+ "at": "2026-10-01T02:45:47"+ },+ "datasheet": {+ "url": "https://www.ti.com/cn/lit/gpn/ua78m",+ "pages": 41,+ "sha256": "de1c4b32fc1fcfd9",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 4,+ "described": 4,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}